NiFe2O4 nanospheres with size-tunable magnetic and electrochemical properties for superior supercapacitor electrode performance

Thirumurugan, Arun; Kavinkumar, T.; Udayabhaskar, R.; Kiruthiga, R.; Morel, Mauricio J.; Aepuru, Radhamanohar; Dineshbabu, N.; Ravichandran, K.; Akbari‐Fakhrabadi, Ali; Mangalaraja, Ramalinga Viswanathan

doi:10.1016/j.electacta.2021.139346

Cited by 37 publications

(6 citation statements)

References 36 publications

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“…The Ms values dropped dramatically at concentration 0.6, it can be explained by MgZnFe 2 O 4 phase ( Table 2 ). The hysteresis curves of MgZn Ferrite calcined at 0.8 reveal ferromagnetic behaviour, however at 0.4 it behaved as a weak ferromagnetic and at 0.6 as an antiferromagnetic [ 45 , 46 ]. The replacement of non-magnetic Zn 2+ ions with magnetic Mg 3+ ions changes the behaviour in site B.…”

Section: Resultsmentioning

confidence: 99%

Structural, magnetic, electric and electrochemical studies on zinc doped magnesium ferrite nano particles - Sol-gel method

Senthamilselvan,

Nithiyanantham,

Kogulakrishnan

et al. 2024

Heliyon

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Section: Resultsmentioning

confidence: 99%

Structural, magnetic, electric and electrochemical studies on zinc doped magnesium ferrite nano particles - Sol-gel method

Senthamilselvan,

Nithiyanantham,

Kogulakrishnan

et al. 2024

Heliyon

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“…[107] Compared with traditional transition metal oxides (NiO, Co 3 O 4 , NiFe 2 O 4 , etc.) with narrow electro-chemical window of 0-0.5 V, [108][109][110] the advantages of REOs such as CeO 2 as the electrode materials for SCs is that they have a wider electrochemical active window of À 1.0-0.8 V, [77] especially below negative potential, which is of great potential as anode materials; on the other hand, it has great advantages for improving the energy density of SCs according to the calculation formula of energy density (E = 0.5 CV 2 , in which E, C and V represent energy density, specific capacitance and voltage, respectively).…”

Section: Re-x (X: O S Se and Te) Compoundsmentioning

confidence: 99%

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

Zhou

2022

ChemSusChem

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Supercapacitors (SCs) can effectively alleviate problems such as energy shortage and serious greenhouse effect. The properties of electrode materials directly affect the performance of SCs. Rare earth (RE) is known as “modern industrial vitamins”, and their functional materials have been listed as key strategic materials. In the past few years, the number of scientific reports on RE‐based nanomaterials for SCs has increased rapidly, confirming that adding RE elements or compounds to the host electrode materials with various nanostructured morphologies can greatly enhance their electrochemical performance. Although RE‐based nanomaterials have made rapid progress in SCs, there are very few works providing a comprehensive survey of this field. In view of this, a comprehensive overview of RE‐based nanomaterials for SCs is provided here, including the preparation methods, nanostructure engineering, compounds, and composites, along with their capacitance performances. The structure–activity relationships are discussed and highlighted. Meanwhile, the future challenges and perspectives are also pointed out. This Review can not only provide guidance for the further development of SCs but also arouse great interest in RE‐based nanomaterials in other research fields such as electrocatalysis, photovoltaic cells, and lithium batteries.

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“…NiFe 2 O 4 (NFO) is a promising ferrimagnetic spinel material for the development of magnetic supercapacitor composites with PPy. Many investigations [11][12][13][14][15] tested capacitive properties of NFO and composites in positive potential windows in KOH electrolyte. Good capacitive properties in KOH electrolyte were reported in a relatively small potential window of ~0.4-0.5 V [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Capacitive Properties of Ferrimagnetic NiFe2O4-Conductive Polypyrrole Nanocomposites

MacDonald,

Zhitomirsky

2024

J. Compos. Sci.

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This investigation addresses increasing interest in advanced composite materials, combining capacitive properties and spontaneous magnetization for energy storage applications in supercapacitors. The capacitive properties of ferrimagnetic NiFe2O4 (NFO) spinel nanoparticles with magnetization of 30 emu g−1 were enhanced using high-energy ball-milling and the use of advanced dispersant, which facilitated charge transfer. NFO electrodes with an active mass of 40 mg cm−2 showed a capacitance of 1.46 F cm−2 in 0.5 M Na2SO4 electrolyte in a negative potential range. The charging mechanism in the negative potential range in Na2SO4 electrolyte was proposed. NFO was combined with conductive polypyrrole polymer for the fabrication of composites. The analysis of the capacitive behavior of the composites using cyclic voltammetry, chronopotentiometry and impedance spectroscopy at different electrode potentials revealed synergy of contributions of NFO and PPy. The highest capacitance of 6.64 F cm−2 was obtained from cyclic voltammetry data. The capacitance, impedance, and magnetic properties can be varied by variation of electrode composition. Composite electrodes are promising for application in anodes of asymmetric magnetic supercapacitors for energy storage and magnetically enhanced capacitive water purification devices.

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NiFe2O4 nanospheres with size-tunable magnetic and electrochemical properties for superior supercapacitor electrode performance

Cited by 37 publications

References 36 publications

Structural, magnetic, electric and electrochemical studies on zinc doped magnesium ferrite nano particles - Sol-gel method

Structural, magnetic, electric and electrochemical studies on zinc doped magnesium ferrite nano particles - Sol-gel method

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

Capacitive Properties of Ferrimagnetic NiFe2O4-Conductive Polypyrrole Nanocomposites

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